Finding the Fourth Proportional to 121,072,916.22, 167,084,153.94 and 66,072,315.66
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Solution
The fourth proportional to 121,072,916.22, 167,084,153.94 and 66,072,315.66 is: 91,181,721.77
Step by Step Solution
- Step 1: Write the proportion equation
121,072,916.22 : 167,084,153.94 = 66,072,315.66 : x - Step 2: Convert to fraction form
121,072,916.22/167,084,153.94 = 66,072,315.66/x - Step 3: Cross multiply
121,072,916.22x = 167,084,153.94 × 66,072,315.66 - Step 4: Simplify right side
121,072,916.22x = 11,039,636,960,907,712 - Step 5: Solve for x
x = 11,039,636,960,907,712/121,072,916.22 - Step 6: Final answer
x = 91,181,721.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.